The Determination of Radon/Thoron Exhalation Rate in an Underground Coal Mine—Preliminary Results [PDF]
International Journal of Environmental Research and Public Health, 2022 The objective of this work was to perform a series of measurements of radon and thoron exhalation in the underground workings of an experimental coal mine. In the years 2012–2015, experiments on underground coal gasification were carried out in a coal mine, which caused, among other effects, damage to rock mass.
Robert Hildebrandt, Michał Bonczyk
exaly +5 more sources
Measurement of the radon and thoron exhalation rates from the water surface of Yixin lake
Nuclear Engineering and TechnologyThe importance of determining the radon exhalation rate from water surface is emphasized by the increased use of radon and its daughter products as tracers in large-scale circulation studies of the atmosphere.
Yixiang Mo, Haibo Yi
exaly +4 more sources
Radon and thoron exhalation rate, emanation factor and radioactivity risks of building materials of the Iberian Peninsula [PDF]
PeerJ, 2020 Radon (222Rn) and thoron (220Rn) are radioactive gases emanating from geological materials. Inhalation of these gases is closely related to an increase in the probability of lung cancer if the levels are high.
Samuel Frutos-Puerto +5 more
doaj +3 more sources
The method for recalibration of thoron concentration reading of RAD7 and obtaining the thoron exhalation rate from soil surface [PDF]
Nuclear Technology and Radiation Protection, 2013 Thoron exhalation rate can be obtained through the combination of the “accumulation chamber” technique and RAD7. Thoron’s rapid decay causes the intake path and the air flow rate to become important factors in calibration.
Tan Yanliang, Xiao Detao
doaj +2 more sources
Exhalation Rate Study of Thoron in Some Building Materials of the Iberian Peninsula [PDF]
Proceedings, 2018 Thoron isotope has been growing in importance in the last years because, despite of its short half-life, can also contribute in the development of lung cancer.
Samuel Frutos-Puerto +5 more
doaj +2 more sources
Radon and thoron exhalation rate measurements from building materials used in Serbia [PDF]
Nukleonika, 2020 The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which ...
Čeliković Igor T. +6 more
doaj +4 more sources
Inhalation Dose and Source Term Studies in a Tribal Area of Wayanad, Kerala, India. [PDF]
J Environ Public Health, 2017 Among radiation exposure pathways to human beings, inhalation dose is the most prominent one. Radon, thoron, and their progeny contribute more than 50 per cent to the annual effective dose due to natural radioactivity. South west coast of India is classified as a High Natural Background Radioactivity Area and large scale data on natural radioactivity ...
Bhaskaran R +8 more
europepmc +2 more sources
AtmosphereBuilding materials, such as brick and concrete, are known indoor radon (222Rn) and thoron (220Rn) sources. Most radon and thoron exhalation studies are based on the laboratory testing of pieces and blocks of such materials.
Akihiro Sakoda +2 more
exaly +3 more sources
Long-Term Measurements of Radon and Thoron Exhalation Rates from the Ground Using the Vertical Distributions of Their Activity Concentrations [PDF]
International Journal of Environmental Research and Public Health, 2021 Masahiro Hosoda +2 more
exaly +2 more sources
Frontiers in Earth Science, 2021 Thoron (220Rn), an isotope of radon with a strong α-decay energy, and its short-lived metallic progeny can pose an elevated lung cancer hazard in room air when unfired-soil derived building materials are used in earthen dwellings.
Nguyệt Thị Ánh Nguyễn +4 more
doaj +1 more source